Cloudflare Outage Disrupts Major Online Services Worldwide

On November 18, 2025, a significant outage at Cloudflare, a major internet infrastructure provider, caused widespread disruptions across various online platforms and services. Users reported issues accessing platforms such as X (formerly Twitter), ChatGPT, League of Legends, Shopify, Dropbox, Coinbase, and Moody's credit rating site.

The outage also impacted transit systems, with New Jersey Transit experiencing digital service disruptions, and France's national railway company, SNCF, warning customers of potential information and schedule unavailability. New York City Emergency Management reported possible interruptions in city services due to the outage.

Cloudflare identified the issue as a spike in unusual traffic at 11:20 UTC, leading to network errors. By 10:40 a.m. EST, the company announced that most problems were resolved, though some residual disruptions remained.

Cloudflare serves as a content delivery network (CDN), managing traffic for about 20% of global websites. Its role as an intermediary in internet connections means that outages can cause widespread digital traffic interruptions.

This incident follows other recent cloud service outages, including those affecting Microsoft's Azure and Amazon's cloud platforms, highlighting the vulnerability of internet-dependent services to failures in core infrastructure providers.